Jesus tom. Come on man. Op. Go to Wulf's Epic battles guide Wulfs guide has on the first post a list of all ebs and next to it a small icon of seals or horns from the ebs that drop them. For better in depth drop info, click on that thread the epic battles and at the end itll say what drops. Sorry for the delay and the trolls here remember
I have watched horns drop from warbeasts and the guide is saying only a seal can drop (I think the symbol is pooched), please recheck